private SpatialDataType GetDataTypeForKind(SpatialShapeKind kind)
{
SpatialDataType dataType;
if (!this.shapeKindToEdmTypeMapping.TryGetValue(kind, out dataType))
{
dataType = (SpatialDataType)typeof(EdmDataTypes).GetProperty(kind.ToString(), true, true).GetValue(null, null);
// add the clr type facet immediately so that return/parameter types have it as well
dataType = dataType.WithPrimitiveClrType(this.ClrTypeResolver.GetClrType(dataType));
// add to dictionary before recursing
this.shapeKindToEdmTypeMapping[kind] = dataType;
// properties
foreach (var property in this.GetMemberPropertiesForKind(kind).ToList())
{
dataType.Properties.Add(property);
}
// methods
foreach (var method in this.GetMethodsForKind(kind).ToList())
{
dataType.Methods.Add(method);
}
}
return(dataType);
}
private IEnumerable <Function> GetMethodsForKind(SpatialShapeKind kind)
{
var parameterKind = kind.HasFacet(SpatialShapeFacets.Geography) ? SpatialShapeKind.Geography : SpatialShapeKind.Geometry;
yield return(new Function("geo", "Distance")
{
ReturnType = EdmDataTypes.Double,
Parameters = { new FunctionParameter("other", this.GetDataTypeForKind(parameterKind)) },
Annotations = { new MemberInSpatialTypeAnnotation(false) }
});
}
/// <summary>
/// Returns the hint for the spatial shape kind.
/// </summary>
/// <param name="value">the spatial shape kind.</param>
/// <returns>the hint for spatial shape kind.</returns>
public static SpatialShapeKindHint SpatialShapeKind(SpatialShapeKind value)
{
return(new SpatialShapeKindHint(value));
}
/// <summary>
/// Determines whether the specified kind has the given facet.
/// </summary>
/// <param name="kind">The shape kind.</param>
/// <param name="facet">The facet to look for.</param>
/// <returns>
/// <c>true</c> if the specified kind has the facet; otherwise, <c>false</c>.
/// </returns>
public static bool HasFacet(this SpatialShapeKind kind, SpatialShapeFacets facet)
{
return(0 != ((int)kind & (int)facet));
}
private IEnumerable <MemberProperty> GetMemberPropertiesForKind(SpatialShapeKind kind)
{
yield return(new MemberProperty("CoordinateSystem", CoordinateSystemDataType));
yield return(new MemberProperty("IsEmpty", EdmDataTypes.Boolean));
bool isGeography = kind.HasFacet(SpatialShapeFacets.Geography);
if (!kind.HasFacet(SpatialShapeFacets.Collection))
{
// Point
if (kind.HasFacet(SpatialShapeFacets.Point))
{
if (isGeography)
{
yield return(new MemberProperty("Latitude", EdmDataTypes.Double.NotNullable()));
yield return(new MemberProperty("Longitude", EdmDataTypes.Double.NotNullable()));
}
else
{
yield return(new MemberProperty("X", EdmDataTypes.Double.NotNullable()));
yield return(new MemberProperty("Y", EdmDataTypes.Double.NotNullable()));
}
yield return(new MemberProperty("M", EdmDataTypes.Double.Nullable()));
yield return(new MemberProperty("Z", EdmDataTypes.Double.Nullable()));
}
else if (kind.HasFacet(SpatialShapeFacets.LineString))
{
var elementKind = isGeography ? SpatialShapeKind.GeographyPoint : SpatialShapeKind.GeometryPoint;
yield return(new MemberProperty("Points", DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind))));
}
else if (kind.HasFacet(SpatialShapeFacets.Polygon))
{
var elementKind = isGeography ? SpatialShapeKind.GeographyLineString : SpatialShapeKind.GeometryLineString;
yield return(new MemberProperty("Rings", DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind))));
}
}
else
{
if (kind.HasFacet(SpatialShapeFacets.Point))
{
// MultiPoint
var elementKind = isGeography ? SpatialShapeKind.GeographyPoint : SpatialShapeKind.GeometryPoint;
yield return(new MemberProperty("Points", DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind))));
}
else if (kind.HasFacet(SpatialShapeFacets.LineString))
{
// MultiLineString
var elementKind = isGeography ? SpatialShapeKind.GeographyLineString : SpatialShapeKind.GeometryLineString;
yield return(new MemberProperty("LineStrings", DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind))));
}
else if (kind.HasFacet(SpatialShapeFacets.Polygon))
{
// MultiPolygon
var elementKind = isGeography ? SpatialShapeKind.GeographyPolygon : SpatialShapeKind.GeometryPolygon;
yield return(new MemberProperty("Polygons", DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind))));
}
else
{
var propertyName = isGeography ? "Geographies" : "Geometries";
var elementKind = isGeography ? SpatialShapeKind.Geography : SpatialShapeKind.Geometry;
yield return(new MemberProperty(propertyName, DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind))));
}
}
}
private SpatialDataType GetDataTypeForKind(SpatialShapeKind kind)
{
SpatialDataType dataType;
if (!this.shapeKindToEdmTypeMapping.TryGetValue(kind, out dataType))
{
dataType = (SpatialDataType)typeof(EdmDataTypes).GetProperty(kind.ToString(), true, true).GetValue(null, null);
// add the clr type facet immediately so that return/parameter types have it as well
dataType = dataType.WithPrimitiveClrType(this.ClrTypeResolver.GetClrType(dataType));
// add to dictionary before recursing
this.shapeKindToEdmTypeMapping[kind] = dataType;
// properties
foreach (var property in this.GetMemberPropertiesForKind(kind).ToList())
{
dataType.Properties.Add(property);
}
// methods
foreach (var method in this.GetMethodsForKind(kind).ToList())
{
dataType.Methods.Add(method);
}
}
return dataType;
}
private IEnumerable<MemberProperty> GetMemberPropertiesForKind(SpatialShapeKind kind)
{
yield return new MemberProperty("CoordinateSystem", CoordinateSystemDataType);
yield return new MemberProperty("IsEmpty", EdmDataTypes.Boolean);
bool isGeography = kind.HasFacet(SpatialShapeFacets.Geography);
if (!kind.HasFacet(SpatialShapeFacets.Collection))
{
// Point
if (kind.HasFacet(SpatialShapeFacets.Point))
{
if (isGeography)
{
yield return new MemberProperty("Latitude", EdmDataTypes.Double.NotNullable());
yield return new MemberProperty("Longitude", EdmDataTypes.Double.NotNullable());
}
else
{
yield return new MemberProperty("X", EdmDataTypes.Double.NotNullable());
yield return new MemberProperty("Y", EdmDataTypes.Double.NotNullable());
}
yield return new MemberProperty("M", EdmDataTypes.Double.Nullable());
yield return new MemberProperty("Z", EdmDataTypes.Double.Nullable());
}
else if (kind.HasFacet(SpatialShapeFacets.LineString))
{
var elementKind = isGeography ? SpatialShapeKind.GeographyPoint : SpatialShapeKind.GeometryPoint;
yield return new MemberProperty("Points", DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind)));
}
else if (kind.HasFacet(SpatialShapeFacets.Polygon))
{
var elementKind = isGeography ? SpatialShapeKind.GeographyLineString : SpatialShapeKind.GeometryLineString;
yield return new MemberProperty("Rings", DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind)));
}
}
else
{
if (kind.HasFacet(SpatialShapeFacets.Point))
{
// MultiPoint
var elementKind = isGeography ? SpatialShapeKind.GeographyPoint : SpatialShapeKind.GeometryPoint;
yield return new MemberProperty("Points", DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind)));
}
else if (kind.HasFacet(SpatialShapeFacets.LineString))
{
// MultiLineString
var elementKind = isGeography ? SpatialShapeKind.GeographyLineString : SpatialShapeKind.GeometryLineString;
yield return new MemberProperty("LineStrings", DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind)));
}
else if (kind.HasFacet(SpatialShapeFacets.Polygon))
{
// MultiPolygon
var elementKind = isGeography ? SpatialShapeKind.GeographyPolygon : SpatialShapeKind.GeometryPolygon;
yield return new MemberProperty("Polygons", DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind)));
}
else
{
var propertyName = isGeography ? "Geographies" : "Geometries";
var elementKind = isGeography ? SpatialShapeKind.Geography : SpatialShapeKind.Geometry;
yield return new MemberProperty(propertyName, DataTypes.CollectionType.WithElementDataType(this.GetDataTypeForKind(elementKind)));
}
}
}
private IEnumerable<Function> GetMethodsForKind(SpatialShapeKind kind)
{
var parameterKind = kind.HasFacet(SpatialShapeFacets.Geography) ? SpatialShapeKind.Geography : SpatialShapeKind.Geometry;
yield return new Function("geo", "Distance")
{
ReturnType = EdmDataTypes.Double,
Parameters = { new FunctionParameter("other", this.GetDataTypeForKind(parameterKind)) },
Annotations = { new MemberInSpatialTypeAnnotation(false) }
};
}
